Ductless, mini split-system air-conditioners have numerous potential applications in residential homes. The most common applications are in homes that do not have central air conditioning. In a traditional central air conditioning system where we would have to run duct throughout the house. Install an air handler most common either in the attic or in the basement. Finally we would install a condenser with a built in compressor on the outside of the house. Usually one thermostat would control the entire system.

Mini Split Air Conditioner Systems

With a mini split system we would install one condenser with a built in compressor on the outside of the house. We can then install one to four indoor units with blowers mounted high on the wall in the rooms chosen that needs the air. Copper tubing connects from each of the indoor units to the one outside compressor. The copper tubing runs on the outside of the house hidden behind plastic tracks that snap together to give a clean finished The tubing circulates the refrigerant back and forth from the compressor to the indoor unit. Also within this track we run electric and a drain line.

Each indoor unit cools the room it’s installed in and has its own remote control. Unlike central systems, split ductless systems need no duct work, making them easier to add to homes without existing ducts. Mini Split Ductless Systems is a great way to add cooling without tearing up walls to install new ducts.

A great variation is the heat pump mode. A type of system that functions as combo heater and a cooler. When used as an air conditioner, a heat pump discharges heat from the house either into the external air. In the winter, a heat pump extracts heat from the air to warm the house.

Another great application for a mini split system is a home that already has central air conditioning, but the duct running up to the upper floor levels which are normally the bedrooms can’t bring enough cool air to cool the room. This generally do to a poor design of the duct work already installed. We would install a mini split system for the upper bedrooms to solve this problem.

Even another great application for a mini split system is for a home that already has central air conditioning, but a new addition was installed on the house. The existing condenser and air handler was sized to the original homes space. Yes you can try to add duct work to the existing system but don’t be surprised if your addition never gets cooled enough for your satisfaction. We would install a mini split system for the addition only.


The main advantages of mini split systems are their small size and flexibility for zoning or heating and cooling individual rooms. Many models can handle as many as four indoor units connected to one outdoor condenser unit. The number of units depends on how much heating or cooling is required for the home. Each of the zones will have its own thermostat, so you only need to condition that space when it is occupied, saving energy and money.


Some people may not like the appearance of the indoor unit part of the system. While less obtrusive than a window room air conditioner, they seldom have the built-in look of a central air conditioning system.

Also the installer must correctly size each indoor unit and judge the best location for its installation. Oversized or incorrectly located air-handlers (indoor units) often result in short-cycling, which wastes energy and does not provide proper temperature or humidity control.

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Richard Marton Electrical Contractor LLC is a full service electrical contractor serving homeowners and businesses in Bergen, Passaic, Essex and Morris County New Jersey with electrical installations and repairs. We are also a Generac Generator installer.

Richard Marton Electrical Contractor LLC works with general contractors, residential architects, interior decorators, interior designers, painters, property management and property maintenance professionals, and professional organizers. We work with these professionals to give clients top of the line electrical installations within such projects as residential remodeling, residential renovations, plus build outs of new kitchens, bathrooms, home offices, add-a-level residential project and more.

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